An organ donation from the 9-year-old Tucson shooting victim has saved the life of a child in Boston, according to media reports.

Christina Taylor Green was one of six people killed in the shooting rampage that targeted U.S. Rep. Gabrielle Giffords outside a Safeway store outside of Tucson. Giffords, 40, remained in critical condition on Saturday.

A friend of Green’s family said they learned of the news through a donors’ network that her donation had saved the life of a young girl on the East Coast, the Arizona Republic reported.